"Change is the act of altering a substance. Organic compounds make up organisms that carry out life processes. Carbon is a major element needed for life. Carbon can bind with a variety of elements. When bonded they become a complex molecule. When Carbon bonds with hydrogen oxygen or nitrogen it can be a single double or triple bond. Carbohydrates give energy for living cells and make structured tissue like glucose. Lipids are trans or saturated fats like butter milk or processed foods"